478136680 has 32 divisors (see below), whose sum is σ = 1229495040. Its totient is φ = 163932480.

The previous prime is 478136647. The next prime is 478136731. The reversal of 478136680 is 86631874.

It is a super-2 number, since 2×478136680² = 457229369522844800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 853536 + ... + 854095.

It is an arithmetic number, because the mean of its divisors is an integer number (38421720).

Almost surely, 2^478136680 is an apocalyptic number.

478136680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

478136680 is an abundant number, since it is smaller than the sum of its proper divisors (751358360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

478136680 is a wasteful number, since it uses less digits than its factorization.

478136680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707649 (or 1707645 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 478136680 is about 21866.3366845020. The cubic root of 478136680 is about 781.9590684201.

The spelling of 478136680 in words is "four hundred seventy-eight million, one hundred thirty-six thousand, six hundred eighty".